@misc{indiciae49e42d86a3d4,
  title = {Preliminary map showing freshwater heads for the Mission Canyon and Lodgepole limestones and equivalent rocks of Mississippian age in the Northern Great Plains of Montana, North Dakota, South Dakota, and Wyoming},
  author = {W. Roger Miller and S.A. Strausz},
  year = {1980},
  doi = {10.3133/ofr80729},
  url = {https://pubs.usgs.gov/publication/ofr80729},
  note = {Source identifier: ofr80729}
}